Systems and method for consistent FM/HD1 diversity delay
US12425116B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Sep 9, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/183
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A broadcast system may have less restrictive timing constraints by providing synchronous processing chains for the HD audio portion and the FM audio portion so that no samples are added or removed from when the input audio is first sampled at an input rate and when the signals are combined and output by a digital analog converter operating at an output rate. The signals can be buffered within the synchronous processing paths and the state of the buffer can be used to control the input rate of the sampler. Graceful change over across multiple input sources can be achieved provided all input source input rates are controlled to by the overall output rate and all input sources are phase aligned to produce output symbols at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.